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Section 16. Analog-to-Digital Converter (ADC)

16.11.3.5 MULTIPLE CHANNELS WITH SIMULTANEOUS SAMPLING

As shown in Figure 16-13, when simultaneous sampling is used, sampling starts on all channels

after the ASAM bit is set or when the last conversion ends. Sampling stops and conversions start

when the conversion trigger occurs.

Figure 16-13: Converting Four Channels, Auto-Sample Start, Trigger Conversion Start, Simultaneous

Sampling

TCONV TCONV TCONV TCONV

ADCLK

ch1_samp

ch2_samp

ch3_samp

ch0_samp

Buffer[0]

Buffer[1]

Buffer[2]

Buffer[3]

DONE

TSAMP

SAMP

TSAMP

TSEQ

Conversion

Trigger

Cleared

in software

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Microchip Technology dsPIC33F Family Specifiche Pagina 29